Open
Cached
·
just now
92/100
SECURITY SCORE
Certificate Information
Subject
CN=*.zammad.com
Issuer
C=US, O=DigiCert Inc, OU=www.digicert.com, CN=RapidSSL TLS RSA CA G1
Valid From
May 12, 2025
Valid Until
May 11, 2026
109 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
98:32:E8:AA:F3:41:A8:29:02:0F:77:9A:CD:77:EA:C5:D8:96:22:39:97:FF:77:85:7B:4A:2C:72:65:03:05:80
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Present
max-age=63072000;
Content-Security-Policy
Good
default-src; script-src; img-src; +5 more
default-src 'self' https://register.zammad.com https://zammad.matomo.cloud https://support.zammad.com wss://support.zammad.com; script-src 'self' 'unsafe-inline' https://register.zammad.com https://support.zammad.com https://zammad.matomo.cloud https://cdn.livestorm.co; img-src 'self' https://cdnjs.cloudflare.com https://zammad.matomo.cloud data:; style-src 'self' 'unsafe-inline' data: https://support.zammad.com https://cdn.livestorm.co https://fonts.googleapis.com; base-uri 'self';form-action 'self' https://support.zammad.com; font-src 'self' https://fonts.gstatic.com; frame-src https://app.livestorm.co https://player.vimeo.com;
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Strengthen CSP by removing 'unsafe-eval'
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Not Configured
(Any CA can issue certificates)
CAA Issues
- • No CAA records configured - any CA can issue certificates
Recommendations
- • Implement CAA records to restrict which CAs can issue certificates for your domain
- • This adds an extra layer of security against unauthorized certificate issuance
- • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
- • Consider adding 'iodef' record to receive security incident reports